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Finding the Fourth Proportional to 86,179.68, 118,932.48 and 48,456.36

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Solution

The fourth proportional to 86,179.68, 118,932.48 and 48,456.36 is: 66,872.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,179.68 : 118,932.48 = 48,456.36 : x
  2. Step 2: Convert to fraction form
    86,179.68/118,932.48 = 48,456.36/x
  3. Step 3: Cross multiply
    86,179.68x = 118,932.48 × 48,456.36
  4. Step 4: Simplify right side
    86,179.68x = 5,763,035,066.57
  5. Step 5: Solve for x
    x = 5,763,035,066.57/86,179.68
  6. Step 6: Final answer
    x = 66,872.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.